His mother died shortly after giving birth to him. He was given to be raised by a family friend but died shortly after. Not sure of burial site. Might be either Calvary or St. Mary's on E.71st St. If he had been buried under the name of his foster (or adoptive?) parents (see notes below about MICHALSKI), then he was buried at Heart of Mary cemetery which is probably an alternative name for St. Mary's.

Felix was only about 4 months old when he died.

No one in the family seems to know exactly which family took in Felix, however, a little research into death certificates turned up a Felix MICHALSKI baby. The death certificate lists his birthday as Jun 1, 1920 and his death as Nov 8, 1920. The certificate lists the parents as Stanislaw (Stanley) MICHALSKI and Stanislawa WALUSKA. Residence was 4112 E.56th St. The reasons I believe this is probably the right baby is that the date of birth is only one day off, the baby lived for just a few months, but most importantly of all, the residence is just a few houses away from Vincent and Aniela's home at 4127 E.56th St. Felix Michalski died of bronchio-pneumonia.

Thus far, I have been unable to find any further trace of Stanislaw and Stanislawa Michalski. There are a couple of Stanley's in the 1920 census, but neither one is living on E.56th. It's possible one of the couples lived elsewhere at the time of the census and moved to E.56th sometime between Felix's birth and his death, but that is still to be determined. One wonders if the couple had any other children, and if so, would any have been old enough to remember this child. Unfortunately, any of them would probably be deceased by now, themselves, and it is unlikely that the origins of this baby would have come down thru the family grapevine. The best way to resolve this would be to see if a birth record exists for the Michalski child. If not, then the scenario presented above is all the more likely.

Additional note:
I found a death certificate for Stella Michalski, nee Walerski, of 7304 Aetna Ave. Spouse: Stanley
Born: May 8, 1888
Died: March 3, 1933 of cervical cancer
Father: Jozef Walerski
Mother: Antonina Lucaszewski
The maiden name Waluska (or the American version Waluski) and Walerski are probably one in the same and the difference due to the way handwriting looked on Felix's certificate vs. on Stella's. Stella is the equivalent of Stanislawa.
1930 Cuyahoga County, Cleveland living at 7304 Aetna
MICHALSKI, Stanley, 53, married at age 27, b, Poland, immigrated 1913
Stella, 43, married at age 17, b. Poland, immigrated 1914

Considering the age difference between the above Stanley and Stella, the 1920 census entry for a Stanley and Stella at 3935 E.67th is probably the same ones who later lived on Aetna. There were no children listed in 1920, either.